Bill,
The question arises, which YMF are you modeling, an original or a newer YMF Classic or Super? The originals had the tank hidden under the fabric (repairs were a little more complicated, no hokey plastic tank cover like the one Pica supplied), on the Classics/Supers the "tank covers" are actually the top part of the tanks and form the center section upper wing surface, with the center strip holding the tanks inplace (repairs are easier). Next question is how complicated do you want to make this plane? You already have quite a bit in this one with the adjustable stab, landing gear (hopefully soon), gas engine etc. Hows the pork factor looking? Just some thoughts you asked for.
